Qt Documentation

highlightranges.qml Example File

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import QtQuick 1.0
import "content"
Rectangle {
id: root
property intcurrent: 0width: 600; height: 300// This example shows the same model in three different ListView items,// with different highlight ranges. The highlight ranges are set by the// preferredHighlightBegin and preferredHighlightEnd properties in ListView.
//
// The first ListView does not set a highlight range, so its currentItem// can move freely within the visible area. If it moves outside the// visible area, the view is automatically scrolled to keep the current// item visible.
//
// The second ListView sets a highlight range which attempts to keep the// current item within the the bounds of the range. However,// items will not scroll beyond the beginning or end of the view,// forcing the highlight to move outside the range at the ends.
//
// The third ListView sets the highlightRangeMode to StrictlyEnforceRange// and sets a range smaller than the height of an item. This// forces the current item to change when the view is flicked,// since the highlight is unable to move.
//
// All ListViews bind their currentIndex to the root.current property.// The first ListView sets root.current whenever its currentIndex changes// due to keyboard interaction.// Flicking the third ListView with the mouse also changes root.current.ListView {
id: list1width: 200; height: parent.heightmodel: PetsModel {}
delegate: petDelegatehighlight: Rectangle { color: "lightsteelblue" }
currentIndex: root.currentonCurrentIndexChanged: root.current=currentIndexfocus: true
}
ListView {
id: list2x: list1.widthwidth: 200; height: parent.heightmodel: PetsModel {}
delegate: petDelegatehighlight: Rectangle { color: "yellow" }
currentIndex: root.currentpreferredHighlightBegin: 80; preferredHighlightEnd: 220highlightRangeMode: ListView.ApplyRange
}
ListView {
id: list3x: list1.width+list2.widthwidth: 200; height: parent.heightmodel: PetsModel {}
delegate: petDelegatehighlight: Rectangle { color: "yellow" }
currentIndex: root.currentonCurrentIndexChanged: root.current=currentIndexpreferredHighlightBegin: 125; preferredHighlightEnd: 125highlightRangeMode: ListView.StrictlyEnforceRange
}
// The delegate for each listComponent {
id: petDelegateColumn {
width: 200Text { text: 'Name: '+name }
Text { text: 'Type: '+type }
Text { text: 'Age: '+age }
}
}
}